Drying apparatus



Nov. 17,1925. 1,561,896

H. S. WOOD DRYING APPARATUS Filed Aug. 26 1924 2 Sheets-Sheet 1 Z. 2 MW? Fig. Z

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HARRY SIDNEY V7001). OF LONDON ENGLAND.

DRYING APPARATUS.

Application filed August 26, 1924 Seriat No. 734,183;

To aZZ whom it may conccwt:

Be it known that I, HARRY SmXnrlVoon, a subject of the King of Great Britain, and a resident of London, England, have invented certain new and useful Improve ments in Drying Apparatus, of which the following is a specification.

This invention relates to drying apparatus and more particularly to apparatus for holding photographicfilms during the process of drying the same, the object of my invention being to devise means whereby such films may be suspended and main-' tained in. u taut state and out of contact with one another while drying the said means accommodating films of the usual standard lengths and widths and providing apparatus whereby the same may be rapidly and efliciently dried.

lVith this and otherobjects and advantages in view as will appear from the following detailed description of my invention a drying: apparatus constructed according thereto comprises a fixed member carryinn a standard or frame and provided with suspension means and a movable member that is capable of adjustmenton the said standard or frame according to the length of film to be dried that is suspended between said fixed and movable n'ien'iljiers and maintained in a taut condition by weights carried by the movable men'iber.

But in order that my invention may be clearly understood and readily carried into effect the same will now be more particular ly described with reference to the accompanyin r drawings in which similar reference characters relate to similar parts throughout the several figures thereof.

in the said drawing-5:

Figures 1 to 3 shew an apparatus c011- structed according to the invention placed in a drying cabinet.

Figure 1 being a sectional elevation.

Figure 2 a section on the line A-A of Figure 1 and Figure 3 a sectional plan.

Fi z nres 4 and 5 are views shewing simple terms of apparatus embodying the invention.

Referring to the said drawings the simple forms of apparatus illustrated in Figures i and 5 may first be conveniently described. In the apparatus shewn in these figures th red member comprises a bar (1, provided with a hook 6 whereby the apparatus may be conveniently suspended, and having attached thereto on its under side a number of hooks'c' for the reception of the clips (Z attached to the upper ends of the films e the lower ends of which are by means of the clips f held by the tension hooks that are provided with the depending extensions or legs it that pass freely through holes provided therefor in the movable member or guide bar 2' and carry the weights j. The bar i is capable of adjustment either on the central standard (Figure ft) or rectangle lar frame I (Figure 5), carried by the bar a, according to the length of the film-that is to be dried on the apparatus and is fixed in the required position by means of set screws engaging in the holes m in the brackets 71 and in one of the corresponding holes or pair of holes 0 in the standard in and frame Z. the weights maintaining the films 6 in the desired state of tension.

Reference may now be made to Figures 1 to 3 wherein I have shown a drying apparatus embodying my present invention placed in a drying cabinet of the kind described in the specification accompanying my Patent No. 1,507,945 of 9th September 19% having an air inlet duct p at the bottom of the cabinet and an air extraction duct at the side of the cabinet heating means 7 being provided in both of the ducts whereby the heated air in the normal drying operation circulates through the entire cabinet between entry and exit being drawn off at the bottom of the cabinet thronu'h the e traction duct 7.

In order to suitably support my apparatus within the drying chamber r of the cabinet I fix two strengthening bars 3 in the positions shewn to the back of the cabinet o carr a ri 'ht angle frame 25 at the top of the inside of the rear wall and the horizontal member of this frame a carries a series of rods or carrier bars a each of which is adap ed to carry a drvinq frame '0. These drying frames o are similar in general construction to those prev o slv desc i an" l s r ted in Figure 5 but in order that they may be readily placed within the cabinet the upper or fixed member to is tubu ar with one end a; bell-mouthed or slightly flared s that the same can be easily slid over one of the carrier bars at. The underside of the tubu ar memher in carries a series of hooks 0 to which are attached the upper ends of the films 6 by the clips (Z, the lower ends of the films e by means of the clips being held by the tension hooks the legs 71 of which pass freely through the holes y in the movable member or guide bar i and carry the weights 7'. The bar 2' is provided with rectangular openended slots 2 at its ends whereby it slides on the frame o and is fixed thereon at the required position according to the length of the film that is to be dried by means of set screws or studs that engage the holes on in the brackets a and in one of the corresponding pair of holes 0 in the frame 1) the weights j keeping the films e taut and out of contact with one another. The central bar a is assumed to be removed in Figure 3 in order to show the construction of the bar and its engagement with the frame 4) that is shewn in section.

A strip of angle iron 1 is placed on the floor of the drying chamber and its vertical flange is provided with a series of notches 2 to receive the lower ends of the frames n which are thus held in their proper relative positions in the chamber, at the top by the engagement of the tubular members w with the carrier bars u and at the bottom by the horizontal bottom ends of the frames resting in the notches 2, the series of films 6 carried in each frame being maintained taut and out of contact with one another by the weighted hooks g and prevented from twisting by the legs h of these hooks passing through the holes g in the bar 2'.

By means of the apparatus described a very large number of films may be rapidly and thoroughly dried and to facilitate the drying frames as the films are dried being replaced by others containing wet films to be dried a series of bars corresponding to the carrier bars u should be fixed on the wall of the room adjacent to the drying cabinet.

hat I claim is 1. An apparatus for holding photographic films during the process of drying comprising an upper fixed member, carrying a standard, with a suspension hook on its upper surface and a series of hooks on its lower surface to which films are attached by means of clips at their upper ends, the lower ends of said films being secured by clips to a series of tension hooks provided wits legs that pass freely through holes in a lower movable member and carry weights whereby the films are maintained in a taut condition. between the upper and lower members, the said movable member being capable of adjustment on the standard and fixed in the required position according to the length of the film to be dried substantially as described.

2. An apparatus for holding photographefilms during the process of dryinn comprising an upper tubular member with a series of hooks on its lower surface to which films are attached by means of clips at their upper end said tubular member carrying a depending frame that supports an adjustable lower movable member through which the legs of a series of tension hooks pass to which the lower ends of said films are secured by clips and by means of weights applied thereto are maintained in a taut condition between said upper and lower members, in combination with a drying cabinet to the rear wall of which are fixed a series of carrier bars upon which are slid said upper tubular members with their depending frames and means for maintaining the lower ends of said frames in their correct relative position to each other.

In testimony whereof I ailix my signature.

HARRY SIDNEY WOOD. 

